Quarterly report pursuant to Section 13 or 15(d)

LONG-LIVED ASSETS (Property, Plant and Equipment) (Details)

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LONG-LIVED ASSETS (Property, Plant and Equipment) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
LONG-LIVED ASSETS [Abstract]    
Land, buildings and improvements $ 1,246,345 $ 1,239,696
Computer equipment and capitalized software 904,791 887,637
Furniture and other equipment 425,888 424,363
Construction in progress 134,829 151,830
Property, plant and equipment, gross 2,711,853 2,703,526
Less: accumulated depreciation 1,647,682 1,602,112
Property, plant and equipment, net $ 1,064,171 $ 1,101,414